Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?
Use the number weights to find different ways of balancing the equaliser.
If you have ten counters numbered 1 to 10, how many can you put
into pairs that add to 10? Which ones do you have to leave out?
What will you try first?
Why did you put that number there?
Tell me about how you found that solution.
Is there only one solution?
Tell me about this approach. What do you think s/he was doing?
How do you think this will help to solve the problem?
What do you think s/he would have done next?